Navman TM 550 User Manual - page 7
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TM 550 | User Manual
1. Introduction
Thank you for purchasing the TM 550. The TM 550 can be plugged into your iCN 550 to inform you of potential delays on your route.
The TM 550 uses RDS-TMC technology to detect potential traffic delays in your area. With the TM 550 your iCN 550 can identify the delays on
your current route and help you avoid them. Use this manual to learn how to operate your TM 550 efficiently and safely, and discover all the
different features available to you.
RDS-TMC
The Traffic Message Channel (TMC) broadcasts real-time traffic and weather information. It operates on the FM Radio Data Sytstem (RDS).
FM radio stations transimit RDS-TMC data on a cycle of several minutes, with up to hundreds of events broadcast to RDS-TMC receivers
such as the TM 550.
When travelling through an area in which you can receive RDS-TMC transmissions, your TM 550 will decode these events and send them
to your iCN 550. Your iCN 550 displays these as a list. If your iCN 550 receives data about an event that will affect your route, you can set it
to warn you of that event or to automatically calculate an alternative route, avoiding the delay caused by that event. See page 11 for further
details.
The list will continue to refresh while you are in range of the same FM transmitter. When you move into an area served by a different FM
transmitter, the events listed on your iCN 550 will be gradually replaced by events received from the new transmitter.
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